45133540 has 12 divisors (see below), whose sum is σ = 94780476. Its totient is φ = 18053408.

The previous prime is 45133523. The next prime is 45133573. The reversal of 45133540 is 4533154.

45133540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 20848356 + 24285184 = 4566^2 + 4928^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128319 + ... + 1128358.

It is an arithmetic number, because the mean of its divisors is an integer number (7898373).

Almost surely, 2^45133540 is an apocalyptic number.

It is an amenable number.

45133540 is an abundant number, since it is smaller than the sum of its proper divisors (49646936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45133540 is a wasteful number, since it uses less digits than its factorization.

45133540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256686 (or 2256684 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 45133540 is about 6718.1500429806. The cubic root of 45133540 is about 356.0408256004.

Adding to 45133540 its reverse (4533154), we get a palindrome (49666694).

The spelling of 45133540 in words is "forty-five million, one hundred thirty-three thousand, five hundred forty".